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Introduction to Marine Biology
  
Manta Ray Cleaning Stationby NOAA's National Ocean Service on Flickr



Did you know 2/3's of the earth's surface is covered by salt water?
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happy clam.by allison.hare on Flickr




MOLLUSCS

This is how it probably looks when you find it on the beach.
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NOAA Ocean Explorer: Windows to the Deep 2003: Exploration of the Blake Ridge: July 28 Logby NOAA, Ocean Explorer on Flickr

This is how it looks when it is alive in the water!   That's right! 
There is an animal in there!
Have you ever eaten clam strips?  They may look gross here but they sure are tasty!
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Scallop Shellby SteveNakatani on Flickr

Here is another tasty animal you or your parents may have eaten before too.  It is called a scallop.  See the beautiful ridges on it and the little "wings" at the base of the shell?  This is a good way to identify a scallop from other shells.
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Giant Atlantic Cockle ( Dinocardium robustum )by Andrea Westmoreland on Flickr

This is called a cockle shell.  These are all over the beaches of the East coast.  They sort of look like a scallop but they have no "wings" at the base like a scallop.  They are also not as flat as a scallop.
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Conch Shellby wayne's eye view on Flickr

Have you ever held one of these to your ear?

This is a conch shell.  
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Hand Gesturesby jurvetson on Flickr

Arthropods

Here is one example of a crab.  There are many colors, sizes and shapes of crabs.  Other animals in this group are lobster and shrimp!
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Coral Reef (چیز دریایی دو)by Hamed Saber on Flickr

Largest coral reef in the world is called The Great Barrier reef.  It is found in Australia and is over half the size of Texas! 
Corals may look like big colorful rock but are actually thousands of tiny animals with a mouth and a ring of tentacles. The hard substance is their skeleton. After they die, their skeleton stays there and another polyp grows on top of the old producing a beautiful coral!
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Sea Anemoneby Aaron Gustafson on Flickr

This is a sea anemone.  

Who remembers what kind of fish doesn't get stung by this poisonous animal?
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Sea Nettlesby abbybatchelder on Flickr

Jellyfish!!
They are really NOT a fish at all and so now are being named, Jellies.
They are in every ocean in the world.  They have no brains, blood or nervous system.  They have tentacles that can sting!
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IMG_1338_IrfanView Auto_16zu9by Andreas M�rz on Flickr

Tropical fish such as the butterfly fish add to the beauty of the coral reef.
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IMG_6698_16zu9by Andreas M�rz on Flickr

This Lionfish sure is pretty, but watch out!  Those big spines are a warning that it is a very dangerous fish to touch!
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Hi, There!by Peter Kaminski on Flickr

This is a beautiful starfish.  Did you know that starfish can be all sorts of colors and sizes? They can also have more than five arms!  They can have up to 18!  If one falls off, they can just grow a new one!
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Bora Bora Sharks!by jonrawlinson on Flickr

Sharks are amazing fish that often get a bad reputation.  They help the ocean by keeping smaller fish populations under control.  They have no bones and can have multiple rows of teeth!
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Sea Turtleby NOAA's National Ocean Service on Flickr

There are six types of sea turtles in our oceans.  A couple of the most famous are the green and the hawksbill turtles.
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Pinnoctopus cordiformis, Common octopusby brian.gratwicke on Flickr

Octopus

-Eight arms
-Squirts ink for defense
-Siphon water to swim
-Live in dens
-Can be up to 20 feet across from tip to tip!
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Giant squidby Derek Keats on Flickr

Giant Squid!

Did you know that a giant squid's eye can be as big as your dinner plate!!!
The largest squid ever found was 59 feet and weighed 2000 pounds!
They have 8 arms and 2 large tentacles!
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by arminho-paper on Flickr

Marine Mammals

What is a mammal?
-Give birth to babies (not eggs)
-Nurse their young 
-Warm blooded
-Need air to breathe
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Dolphins in Pine Island Soundby pmarkham on Flickr

Dolphins are marine mammals too!  Have you ever seen a dolphin come up for air?
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Manatee pondby ellenm1 on Flickr

This mammal is called a manatee.  It swims very slowly, eats only plants and is closely related to an elephant.  
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